Convert TN1 to PGM

Stop converting TN1 files one by one. reaConverter processes entire folders to PGM automatically — just drag, drop, and click Convert.

Looking to change TN1 files to PGM format? reaConverter makes it simple — add your files, select output format, and convert entire folders in one click. Runs entirely on your hardware for maximum speed — no waiting for uploads or server queues.

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How to Convert Multiple TN1 Files to PGM?

1. Download and Install reaConverter

reaConverter is a standalone Windows app — download, install, and start converting TN1 files in under two minutes.

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Install reaConverter

2. Load your TN1 files

Start reaConverter and add your .tn1 files. The software processes everything locally, so your files never leave your computer.

Use drag-and-drop, folder browser, or right-click conversion from Explorer.

Load your TN1 files into reaConverter

3. Select PGM as output format

Select PGM from 700+ supported output formats. Choose your destination folder and adjust settings to match your needs.

Select PGM as output format

4. Start TN1 to PGM conversion

Click Convert to start the batch. reaConverter processes files quickly and shows you the status of each one.

Start Conversion

Once done, reaConverter shows a summary. Click 'Show converted files' to jump straight to your PGM output.

TN1 to PGM Converter

reaConverter offers the fastest, simplest solution for converting your TN1 files into PGM in seconds - all files processed on your PC for maximum privacy and speed.

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Do more with your files

Converting TN1 files for use in a workflow? reaConverter offers many ways to process files, so you can customize them according to your requirements.

Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.

Conversion features
Image editing

User Reviews

Average User Rating:
Last updated on January 25, 2026
"An efficient all-in-one solution for image conversion and light editing, designed for maximum user-friendliness."
Elena Anderson
Elena Anderson
Happy User
"Enable shell integration for lightning-fast file conversions directly from Windows Explorer."
R. Lewis
R. Lewis
Happy User
"After 200+ conversions on my budget laptop (i3-1115G4/4GB RAM/Win11), reaConverter outperforms heavyweight tools. Zero crashes, low CPU usage during batch processing, and no internet dependency - exactly what professionals need."
Walter Morgan
Walter Morgan
Satisfied Customer
"An ultra-fast solution for minimizing file sizes. The entire conversion process takes just 3 minutes!"
Logan B.
Logan B.
Satisfied Customer
"I use the online converter — it’s quick and hassle-free!"
Jian Wong
Jian Wong
Happy Online User
"Working in a print studio means constantly juggling obscure file formats. I used to waste hours Googling converters or installing random software — until reaConverter became my Swiss Army knife. Install it once, and you're set forever. No internet? No problem!"
Helen Evans
Helen Evans
Satisfied Customer

TN1 to PGM Conversion: FAQ

What are TN1 files?

TN1 is an archaic format associated with Atari ST — a brand of personal computers that used to be popular in the 1980s and 1990s. TN1s represent compressed bitmap images created or edited using image software designed for Atari computers, such as Tiny Stuff or Tiny View. Opening such files with currently available image viewers is probably difficult, so conversion might be the best option.

What are PGM files?

The PGM or Portable Graymap format is part of a package of open source graphics programs called Netpbm. Other Netpbm formats include PPM (Portable Pixmap) and PBM (Portable Bitmap), also known under the collective name of PNM (Portable Anymap). A PGM file includes a grayscale image, can work on a UNIX platform, as well as on Windows or Mac OS X, and can render a scope of up to 255 grayscale colors.

Can reaConverter convert TN1 to PGM?

Yes! reaConverter instantly converts .tn1 to .pgm with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert TN1 to PGM online?

If you only need to convert a few TN1 files to PGM format, feel free to try our free online free online TN1 to PGM converter — perfect for small batches with no installation needed!

How can I turn TN1 files into PGM on my computer?

The best way to change TN1s to PGMs on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from TN1 to PGM.

How can I automate TN1 to PGM files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert TN1 files to PGM using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line tn1 to pgm converter for batch processing.

What else can I do with reaConverter?

Convert GIS filesConvert DICOM imagesResize picturesChange file dateCopy IPTC data

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